.wrapper {
    font-family: PingFangsC;
    font-size: 16px;
    color: #000000;
}
/* 版心 */
.container {
    width: 1440px;
    margin: 0 auto;
}
/* 头部 */
.common-header {
    height: 70px;
    /* border-bottom: 1px solid #ccc; */
}
.common-header > div {
    height: 69px;
    background-color: #ffffff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-left: 30px;
    padding-right: 30px;
    /* 设置阴影效果 */
    /* box-shadow: 1px 0px 2px #ccc; */
}
.common-header > div .left img {
    display: block;
    width: 85px;
}

.common-header > div .right .dropdown {
    display: flex;
    align-items: center;
}
.common-header > div .right .icon-1 {
    display: inline-block;
    vertical-align: middle;
    width: 40px;
    height: 40px;
    background-image: url(../image/user.png);
    background-repeat: no-repeat;
}
.common-header  .dropdown-box {
    /* 父元素  相对定位 */
    position: relative;
}
.common-header .dropdown-box .title {
    padding: 0 10px;
    cursor: pointer;
    position: relative;
    color: #333;
}
.common-header .dropdown-box .title i {
    /* display: block; */
    position: absolute;
    right: 0;
    top: 8px;
    width: 6px;
    height: 4px;
    background-image: url(../image/i-cert.png);
    background-repeat: no-repeat;
}

.common-header  .dropdown-box ul {
    display: none;
    /* 子元素  绝对定位 */
    position: absolute;
    top: 30px;
    width: 100%;
}
.common-header .dropdown-box ul li a {
    display: block;
    height: 40px;
    line-height: 40px;
    text-align: center;
    border-bottom: 1px solid #ccc;
    background-color: #f0f0f0;
    border-radius: 5px;
}

/* 主体 */
.common-main {
    background-color: #FAFAFA;
}
.common-main > div {
    padding: 20px 30px;
}
/* 侧栏菜单 */
.common-main .common-aside {
    width: 146px;
    height: 630px;
    /* background-color: skyblue; */
    margin: 0 15px ;
    float: left;
}

.common-aside .menu-first .line {
    width: 80px;
    height: 1px;
    background-color: #f0f0f0;
    margin-left: 30px;
    margin-top: 20px;
    margin-bottom: 20px;
}
.common-aside .menu-first .title {
    height: 40px;
    line-height: 40px;
    cursor: pointer;
}
.common-aside .menu-first .title span {
    font-size: 22px;
    font-weight: bold;
    vertical-align: middle;
}
.common-aside .menu-first.active .title span {
    color: #408EFF;
}
.common-aside .menu-first .title .icon-home {
    background-image: url(../image/i-home.png);
}
.common-aside .menu-first .title .icon-manage {
    background-image: url(../image/i-manage.png);
}
.common-aside .menu-first .title .icon-tool {
    background-image: url(../image/i-tool.png);
}
.common-aside .menu-first .title [class^='icon'] {
    display: inline-block;
    vertical-align: middle;
    width: 24px;
    height: 24px;
    background-repeat: no-repeat;
    background-position: center center;
    margin-right: 6px;
}

.common-aside .menu-first ul {
    margin-left: 36px;
}
.common-aside .menu-first ul li a {
    display: block;
    height: 40px;
    line-height: 40px;
}

/* 右侧内容 */
.common-main .common-content {
    width: 1144px;
    height: 988px;
    /* background-color: yellowgreen; */
    float: right;
}
.common-main .common-content .message {
    font-size: 18px;
    /* font-weight: normal; */
}